6-152244534-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_182961.4(SYNE1):c.19692+3G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00205 in 1,614,002 control chromosomes in the GnomAD database, including 77 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/2 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0012 ( 4 hom., cov: 32)

Exomes 𝑓: 0.0021 ( 73 hom. )

Consequence

SYNE1
NM_182961.4 splice_region, intron

Scores

Splicing: ADA: 0.000007548

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts P:1B:9

Conservation

PhyloP100: 1.90

Variant links:

Genes affected

SYNE1 (HGNC:17089): (spectrin repeat containing nuclear envelope protein 1) This gene encodes a spectrin repeat containing protein expressed in skeletal and smooth muscle, and peripheral blood lymphocytes, that localizes to the nuclear membrane. Mutations in this gene have been associated with autosomal recessive spinocerebellar ataxia 8, also referred to as autosomal recessive cerebellar ataxia type 1 or recessive ataxia of Beauce. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]

SYNE1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.81).

BP6

Variant 6-152244534-C-T is Benign according to our data. Variant chr6-152244534-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 284280.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr6-152244534-C-T is described in Lovd as [Pathogenic].

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.00116 (176/152310) while in subpopulation SAS AF= 0.0232 (112/4828). AF 95% confidence interval is 0.0197. There are 4 homozygotes in gnomad4. There are 111 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 176 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SYNE1	NM_182961.4 link	c.19692+3G>A		splice_region_variant, intron_variant	Intron 106 of 145	ENST00000367255.10	NP_892006.3

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
SYNE1	ENST00000367255.10 link	c.19692+3G>A	splice_region_variant, intron_variant	Intron 106 of 145	1	NM_182961.4	ENSP00000356224.5	Q8NF91-1
SYNE1	ENST00000423061.6 link	c.19479+3G>A	splice_region_variant, intron_variant	Intron 105 of 145	1		ENSP00000396024.1	A0A0C4DG40
SYNE1	ENST00000367256.9 link	n.3384+3G>A	splice_region_variant, intron_variant	Intron 21 of 60	1
SYNE1	ENST00000409694.6 link	n.3276+3G>A	splice_region_variant, intron_variant	Intron 19 of 58	1

Frequencies

GnomAD3 genomes

AF:

0.00114

AC:

173

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000982

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.0226

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00949

Gnomad NFE

AF:

0.000529

Gnomad OTH

AF:

0.00143

GnomAD3 exomes

AF:

0.00392

AC:

986

AN:

251412

Hom.:

AF XY:

0.00535

AC XY:

727

AN XY:

135874

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0281

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000800

Gnomad OTH exome

AF:

0.00228

GnomAD4 exome

AF:

0.00214

AC:

3128

AN:

1461692

Hom.:

Cov.:

AF XY:

0.00309

AC XY:

2246

AN XY:

727150

show subpopulations

Gnomad4 AFR exome

AF:

0.000179

Gnomad4 AMR exome

AF:

0.000760

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0295

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000339

Gnomad4 OTH exome

AF:

0.00192

GnomAD4 genome

AF:

0.00116

AC:

176

AN:

152310

Hom.:

Cov.:

AF XY:

0.00149

AC XY:

111

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.000168

Gnomad4 AMR

AF:

0.000981

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.0232

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000529

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.000619

Hom.:

Bravo

AF:

0.000559

Asia WGS

AF:

0.0100

AC:

AN:

3478

EpiCase

AF:

0.000873

EpiControl

AF:

0.00113

ClinVar

Significance: Benign/Likely benign

Submissions summary: Pathogenic:1Benign:9

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Nov 03, 2015

Eurofins Ntd Llc (ga)

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jan 05, 2024

Athena Diagnostics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Benign:2

Nov 05, 2020

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 26539891) -

Mar 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

SYNE1: BP4, BS1 -

Autosomal recessive ataxia, Beauce type

Benign:2

Aug 22, 2023

Mendelics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Abnormal brain morphology

Pathogenic:1

Lupski Lab, Baylor-Hopkins CMG, Baylor College of Medicine

Significance: Likely pathogenic

Review Status: flagged submission

Collection Method: research

- -

Autosomal recessive ataxia, Beauce type;C2751807:Emery-Dreifuss muscular dystrophy 4, autosomal dominant

Benign:1

Jan 23, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Arthrogryposis multiplex congenita 3, myogenic type

Benign:1

May 04, 2023

Molecular Genetics, Royal Melbourne Hospital

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

South Asian population frequency is 2.65% (859/30,614 alleles, 21 homozygotes in gnomAD v2.1). Based on the classification scheme RMH Modified ACMG/AMP Guidelines v1.6.1, this variant is classified as BENIGN. Following criteria are met: BA1 -

Emery-Dreifuss muscular dystrophy 4, autosomal dominant

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.81

CADD

Benign

9.2

DANN

Benign

0.39

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.0000075

dbscSNV1_RF

Benign

0.056

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over